Boomer or “baby boomer” Is often described as someone who was born in 146-1964. Now it is used as an insult to someone who is a normie and knows nothing meme wise
Son: dad school sucks I don’t want to go tomorrow

Dad: when I was your age
Son: ok boomer
by Reddituser54 December 4, 2019
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When used as an argument against anyone other than an actual boomer, it means "I'm wrong and must stfu" in Retardese
xxx: it’s not hard to be part of the armed forces
>Inb4 super high tech bullshit
Cut the shit, it’s made to be used to by literal retards in combat, now way they aren’t built to be easily trainable as again, it’s the military
yyy: never have i once mentioned high tech shit but ok boomer
by funde kudasai November 10, 2019
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OK boomer is an internet slang phrase used, often in a humorous or ironic manner, to call out or dismiss people that are close-minded or people that don't understand your humour or point. A boomer is often described as an older person with the trouble of understanding newer culture and humour
Person1: "shows meme".
Person2: "That's not funny".
Person1: "Ok Boomer"
by Dickmeister6969 November 19, 2019
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just is just a dead meme. You searched this up either because of 2 reasons.

1. You had a flashback to when that meme was popular and/or you had a flashback of the song
2. You are living in Yesturyear.
Person: Back in my day we didnt have ______ _________ ____
You: Ok Boomer
by Paulllllllllll40503 March 29, 2021
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when basic op's make everyone ruthless
OP:hey can I make you a boomer

other person: OK BOOMER
by kakay98365 December 7, 2019
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A put-down used to tell an ignorant or closed-minded person of the baby-boomer generation that you do not respect their opinion because it's built on misinformation or ignorance so great that it's unreasonable to try and undo it all in the current conversation. Typically, one who uses this phrase does so because they realise that the person they're talking to would not be willing or able to enter a reasonable discussion about their misinformed opinion.
Boomer: "You millennials are so lazy, you think you're entitled to an easy life. You don't know how the world really works. By the time I was your age I'd paid off my mortgage because I worked hard."

Millennial: "OK boomer"
by Pablo Guardo February 27, 2020
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